Home / 88,583.98-122,215.38-61,716.69

Finding the Fourth Proportional to 88,583.98, 122,215.38 and 61,716.69

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Solution

The fourth proportional to 88,583.98, 122,215.38 and 61,716.69 is: 85,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,583.98 : 122,215.38 = 61,716.69 : x
  2. Step 2: Convert to fraction form
    88,583.98/122,215.38 = 61,716.69/x
  3. Step 3: Cross multiply
    88,583.98x = 122,215.38 × 61,716.69
  4. Step 4: Simplify right side
    88,583.98x = 7,542,728,720.69
  5. Step 5: Solve for x
    x = 7,542,728,720.69/88,583.98
  6. Step 6: Final answer
    x = 85,147.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.